I want to create a user for running (testing) unsafe applications (including native Linux, Java and WINE). I want to prevent those applications from accessing anything except /home/thisuser, keyboard, mouse, sound and video cards. How should I set the permissions? Lubuntu GUI didn't even allowed me to block the network access for this user. (Disk partitions seem to work; this user can't access USB drives and other partitions, not to mention /home/otherusers, without entering the root password. I've not tested Java and WINE restrictions yet, but being launched by that user, they probably must follow the restrictions).

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    Many folks use disposable Containers or VMs for testing and experimenting in order to avoid unnecessary changes to their properly-working system. – user535733 Jul 31 at 21:34
  • Check out Virtualbox. It's in the Ubuntu repos. The only issue is with Lubuntu... do you have enough cpu/memory? Don't bother much with Wine... not worth the effort in my opinion :-) – heynnema Jul 31 at 23:57

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